Is there a longer lifespan for High end equipment?

Unanswered Question
Aug 13th, 2009

Got a strong feeling that the lifespan of high end and chassis based Campus switches are longer then the switches that have fix port configurations.

Unfortunately I can't find any document on cisco that supports this feeling.

E.g. lifespan different between 6509-E and 3750

Is there a longer lifespan for High end equipment?

Kind Regards,


I have this problem too.
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Jon Marshall Thu, 08/13/2009 - 05:04


I've never seen any documentation that says so but definitely the 4500 and especially the 6500 have a longer lifespan that the fixed chassis switches.

But it's the chassis rather than the actual cards/supervisors that are still around and even the chassis's have been updated eg. 6500-E chassis.

Some of the modules/supervisors in both the 4500 and 6500 are EOL now but i guess it easier to update both the 4500 and 6500 models without having to start all over.


Joseph W. Doherty Thu, 08/13/2009 - 05:19

Yes and no. Chassis architecture are often designed with room for growth, but even they hit limits. For example, the 4500 series was limited to 6 Gbps per slot until the newer E series. The 6500 series is limited to 20 or 40 Gbps per slot. If you know the architecture has capacity for growth, and if it's popular enough for the vendor to provider newer cards, yes its lifespan can be longer. However, even when this is true, you might end up replacing everything but the chassis itself. E.g. given a 6500 with a sup1 and 6148s, we can replace the sup1 with a sup720, replace the 6148s with 6748s, replace the fan tray (more heat from the newer components?), and replace the power supplies (more power needed).

gerrit-frans Thu, 08/13/2009 - 05:26

I fully agree that grow is much related to that day technologies.

Were I am looking for is more related to End of sale and End of support.

Thanks, Gerrit


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